On Fri, Nov 12, 2021 at 11:12 AM Alexander Aring <alex.aring@xxxxxxxxx> wrote: > > Hi, > > On Thu, 11 Nov 2021 at 09:59, Dongliang Mu <mudongliangabcd@xxxxxxxxx> wrote: > > > > In nl802154_new_interface, if type retrieved from info->attr is > > NL802154_IFTYPE_UNSPEC(-1), i.e., less than NL802154_IFTYPE_MAX, > > it will trigger a shift-out-of-bound bug in BIT(type) [1]. > > > > Fix this by adding a condition to check if the variable type is > > larger than NL802154_IFTYPE_UNSPEC(-1). > > > > Thanks. > > I just sent another patch to fix this issue. The real problem here is > that the enum type doesn't fit into the u32 netlink range as I > mentioned some months ago. [0] Sorry for the delayed fix. It's fine. This fix hits the core of the underlying bug. > > - Alex > > [0] https://lore.kernel.org/linux-wpan/CAB_54W62WZCcPintGnu-kqzCmgAH7EsJxP9oaeD2NVZ03e_2Wg@xxxxxxxxxxxxxx/T/#t
